1985 Ford Sierra vs. 1998 Opel Astra
To start off, 1998 Opel Astra is newer by 13 year(s). Which means there will be less support and parts availability for 1985 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1985 Ford Sierra would be higher. At 2,790 cc (6 cylinders), 1985 Ford Sierra is equipped with a bigger engine. In terms of performance, 1985 Ford Sierra (148 HP @ 5700 RPM) has 74 more horse power than 1998 Opel Astra. (74 HP @ 5200 RPM). In normal driving conditions, 1985 Ford Sierra should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1985 Ford Sierra weights approximately 85 kg more than 1998 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1985 Ford Sierra (220 Nm @ 3800 RPM) has 90 more torque (in Nm) than 1998 Opel Astra. (130 Nm @ 2800 RPM). This means 1985 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra.
Compare all specifications:
| 1985 Ford Sierra | 1998 Opel Astra | |
| Make | Ford | Opel |
| Model | Sierra | Astra |
| Year Released | 1985 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 2790 cc | 1596 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 74 HP |
| Engine RPM | 5700 RPM | 5200 RPM |
| Torque | 220 Nm | 130 Nm |
| Torque RPM | 3800 RPM | 2800 RPM |
| Engine Bore Size | 93 mm | 85 mm |
| Engine Stroke Size | 68.5 mm | 69.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1205 kg | 1120 kg |
| Vehicle Length | 4400 mm | 4060 mm |
| Vehicle Width | 1680 mm | 1700 mm |
| Vehicle Height | 1370 mm | 1420 mm |
| Wheelbase Size | 2620 mm | 2620 mm |
